Perhaps you should try some spelling variations:
passiv » passive, massiv, passiven
massivene » massiven, massivere, massive
massierer » kassierer, kassierers, massigeren
massferrer » masferrer, massfehler, massfeller

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (passiv OR (massivene OR (massierer OR massferrer)))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(passiv or (massivene or (massierer OR massferrer)))*".